2017 Jun 13 13:38:17 : Application.logger (FATAL) The following error occurred during application execution : /home/otbval/Dashboard/src/OTB/Modules/IO/ImageIO/include/otbImageFileWriter.txx:449:
Could not create IO object for file /tmp/out.blabla
Tried to create one of the following:
RADImageIO
BSQImageIO
LUMImageIO
TileMapImageIO
GDALImageIO
ONERAImageIO
MSTARImageIO
You probably failed to set a file suffix, or
set the suffix to an unsupported type.

Traceback (most recent call last):
File "<string>", line 3, in <module>
File "/home/poughov/build/SuperBuild-develop-releasemode/install/lib/otb/python/otbApplication.py", line 1092, in __setattr__
raise AttributeError("Parameter {} does not exist in the application.".format(attr.lower()))
AttributeError: Parameter hello does not exist in the application.

Output on better_error_messages branch (in Debug):

Traceback (most recent call last):
File "<string>", line 3, in <module>
File "/home/poughov/build/SuperBuild-develop/install/lib/otb/python/otbApplication.py", line 1092, in __setattr__
raise AttributeError("Parameter {} does not exist in the application.".format(attr.lower()))
AttributeError: Parameter hello does not exist in the application.